2l83 is a 1 chain structure with sequence from Halvd. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
[SAMP1_HALVD] Protein modifier that is likely covalently attached to lysine residues of substrate proteins. The tagging system is termed SAMPylation. It is not known whether it is implicated in the targeting of proteins to the proteasome for degradation.